[PATCH 3.14 43/46] PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 3.14 43/46] PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset
Date	2016-08-18 16:00 +0200
Message-ID	<s7w1s-vD-17@gated-at.bofh.it> (permalink)
References	<s7w1r-vD-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chris Blake <chrisrblake93@gmail.com>

commit 9ac0108c2bac3f1d0255f64fb89fc27e71131b24 upstream.

Similar to the AR93xx series, the AR94xx and the Qualcomm QCA988x also have
the same quirk for the Bus Reset.

Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/pci/quirks.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3017,13 +3017,15 @@ static void quirk_no_bus_reset(struct pc
 }
 
 /*
- * Atheros AR93xx chips do not behave after a bus reset.  The device will
- * throw a Link Down error on AER-capable systems and regardless of AER,
- * config space of the device is never accessible again and typically
- * causes the system to hang or reset when access is attempted.
+ * Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset.
+ * The device will throw a Link Down error on AER-capable systems and
+ * regardless of AER, config space of the device is never accessible again
+ * and typically causes the system to hang or reset when access is attempted.
  * http://www.spinics.net/lists/linux-pci/msg34797.html
  */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
 
 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
 			  struct pci_fixup *end)

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[PATCH 3.14 43/46] PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-08-18 16:00 +0200

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